We recommended you change your filter at least once per year. Don’t use a filter cartridge that’s more than two years old. Theses filters helps protect your health and wallet. Dirty filters can even void your warranty, so it pays to check your spa filters once or twice a month. It’s time to replace your filters if…
1. The Quick Rinse (Weekly)

2. The Chemical Rinse (Monthly)

Purchase a bottle of hot tub filter cleaner.
Generously spray down your hot tub filters and let them sit for about 15 minutes. Then, rinse them down with clean water.
3. The Chemical Soak (Every 3-4 Months)

You should change the water in your hot tub every three to four months. At this point you should also take the time to do a thorough cleaning of your filter.
Let the filter rest in the solution overnight or 24 hours.
The next day, be sure to rinse the heck of the filters with clean water. Again, you don’t want foamy hot tub water.

